Electrical accumulator.



ELECTRICAL ACCUMULATOR.

APPLICATION FILED NOV.2B| I917- Patented Sept. 8, 1918.

Corrri, a ciiizcn other hand the tubes for Specification of Letters mom.

- 1. w Patented. Slept. h, l.l2 il&

Application filed 1*! ovcmecr 28, 1917. Serial. filo. Ell li ted.

To all to hem it m oy concern:

Be it known that L Eliiim .iciixsia osc of the Republic of France, residing at l liilboni, Paris in the Republic of liars invented certain .nci and useful Improvements in Electricsl Accui'nolstors, of which the following is specification. W

The present encioii relates to electrical occmuulators toe cells or which are con mined in a. closed receptacle, through the Walls of which the one hood.

line de ec' oi the. improvements forming The oi J the subject-isomer of this invention. is to remove this disadvantage. lit-consists in cm ploying. for cool accumulator cell closed through the cover oil which there pass the electrode stems and tlic tube for the es cape of gas :trom tie cell in question and furthermore, forthe lottery of cells as it whole, a closed vessel the cover or which oil'ords passage to the escape t cos oi? all the cells and one or two side Walls of which eliord passage to the end electrode stems oi the battery. By this means the tops of the covers of the jars are preserved trom any deposit. of transported electrolyte, and. the danger of electrolysis between the end electrode stems, which pass through the outer vessel at points some distance apart, is negligiblc. Aliotlieiimprovement consists in the orrangcment of the electrodes themselves.

The positiveclectrodc completely fills tlic lower of each jcr. The negative else-- trode is supported by a spider of insulating materiel on the positive electrode and following the ascending and. descending movements of the surface of the latter in pro y tiou as it increases and decreases iii size during" charging and discharging. The anodeond the cathode are therefore always exactly the some distance apart, which is not in use,

the lll ordinary cells, in which the plates pl .cd vertically and subjected to SllOl'ikfill'Q i w between tliciilselves in consequence 01 their accumulation of slime in the bottoms the jars, such slime orising from the formation, at the positive electrode of pcroxid of the motel forming suc i electrodes.

this con "iiCL'iOllill torso on later sccoroiug to the present invention illustrated in sectional elevation in the occompsuying drawing o Way of example,

ii basket 1 of siitimouiel lead, zelluloid c oooitc or other suitable material, of conveuiciit slmgoe and lie I the bottom oi one 2 out coo"v occunr cell, and slides loosely in the icon A rod 3 outirooiiicl 1o, rests direct y on lead, insulated at i, and Widening out tlie'bottom of the casket at 5 serves as an electrode stem.

The basket is filled with active material G. generally spon y iced trsated in o special inc-liner, forming the positive electrode.

Upon this material there-rests o movable spider of insulating materiel 7, few millimetersliigli. which supports second basket 8', exactly like the previous one. also filled Withoctive material 9, elect-rode.

is possible, according to the height and. internal dimensions of the to pile sevoral baskets on top of one another, which enables the capacities to be proportioned to the current densities per unit of surface of the electrodes.

This orroiigemcnt enables the distance between the iLCiJl'VB masses or electrodes to be however they nmy expand kept invariable, or contract during the charging andv discharging of the cells.

Short circuits, which frequently occur hetwecntlie plates of ordinary accumulators, are therefore obviated.

Each cell rests on a little spider forming e dish 1. An insulating collar-l2 keeps it at the proper distance from the adjacent cells.

The stems the electrodes pass out through the covers 13, fluid tightness beinginsui'od o means of india rubber rings i l. according to the arrangement usually adopted.

The height of the tube 15 for the escape of the gases is about double the distance be tween the top of the connections 16 and the cover 13 oil? the jars. The internal dimneter deformation or of tips I forming the negative through this cover,

site sides of the vessel ables the covers 13 of the of, this tube is calculated in such a manner that atmospheric pressure retains the electrolyte if the accumulator is upset.

When the cells have been connected to one another they are inclosed in a common ves se118 of celluloid, which is hermetically sealed by the cover 17.

The end electrode stems pass out at 19 through india-rubber rings 20 on two oppo- 18. It will be seen that this arrangement enjars to be kept sheltered from splashes of acid and the connections always to be kept dry during the charging, discharging or transportation of the battery. Electrolysis, which seems inevitable between the external connections in the ordinary high-voltage batteries, is there fore completely arrangement.

What I claim and desire to secure by Letters Patent of the United States is 1. An electrical accumulator of the portable type comprising in combination an outer casing having a cover, a plurality of cells located in said casing, each cell having a cover and having electrode stems and a vertically directed gas escape pipe passing the electrode stems extending upwardly only as far as the chamber between the casing cover and the cell covers, and each escape pipe extending through :said chamber and easing cover and opening into the atmosphere just above the eliminated by the present atter cover, substantially as described.

2. An electrical accumulator of the portable type comprising in combination an outer casing having a' cover, a plurality of cells located in said casing, each cell having a cover and having electrode stems and a vertically directed gas escape pipe passing through this cover, the electrode stems extending upwardly only as far as the chamber between the casing cover and the cell covers, the end electrodes passing through side walls of the casing, and each escape pipe extending through said chamber and casing cove and opening into the atmosphere just above the latter cover, substantially as described.

3.-An electrical accumulator of the portable type comprising a plurality of cells each having a cover, a basket filled with active material located at the lower part of each cell and forming the positive electrode a basket filled with active material constituting thenegative electrode located above said positive electrode, an insulating distance piece interposed between said electrodes, electrode stems passing from, said electrodes through the cell cover, a gas escape pipe passing through said cover, an hermetically sealed outer casing, said gas escape pipes and the end electrode stems of the cells passing through the walls of the said external casing,substantially as describrd.

In testimony whereof I attix my signature in presence of two witnesses.

EMILE ALEXAN-pRE, COTTE.

e WVitnesses:

EUGENE Hns'rAvnR, CnAs. P. Pnnssrnr. 

